题目

题型：同步题难度：来源：

选词填空。1. Have you done your homework _____? (for, just, yet)
2. I have _____ been to Chengdu. (ever, never, yet)
3. He has _____ washed the dishes. (already, ever, for)
4. He has worked there _____ he left school. (already, just, since)
5. Have you cleaned your room _____? (for, just, yet)
6. She has known Sam _____ nine years. (for, never, since)
7. They have _____ arrived. (ever, just, yet)
8. Have you _____ ridden a horse? (ever, for, yet)
9. She has known Fred _____ they were at primary school. (already, just, since)
10. We haven"t completed the project _____. (already, for, yet)

答案

1. yet
2. never
3. already
4. since
5. yet6. for
7. just
8. ever
9. since
10. yet